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US09528596B2 Gear box with clutch having spring engagement and hydraulic disengagement 有权
带离合器的齿轮箱具有弹簧接合和液压脱离

Gear box with clutch having spring engagement and hydraulic disengagement
摘要：
A gear box has a clutch comprising a hub and a coupling, each having drive portions that are movable between engaged and disengaged positions. In the engaged position, the hub and coupling drive portions are engaged in a manner to allow torque to be transmitted between the hub and the coupling. In the disengaged position, the hub and coupling drive portions are spaced apart in a manner to prevent torque from being transmitted between the hub and the coupling. The clutch has an actuator that moves the hub and coupling drive portions between the engaged and disengaged positions. In moving the hub and coupling drive portions to the engaged position, the actuator is driven by spring pressure. In moving the hub and coupling drive portions to the disengaged position, the actuator is driven by hydraulic pressure supplied against the actuator sufficient to overcome the spring pressure.
摘要（中）：

齿轮箱具有包括轮毂和联轴器的离合器，每个都具有可在接合位置和脱离位置之间移动的驱动部分。 在接合位置，毂和联接器驱动部分以允许扭矩在轮毂和联轴器之间传递的方式接合。 在分离位置，轮毂和联接器驱动部分以防止扭矩在轮毂和联接器之间传递的方式间隔开。 离合器具有使轮毂和联接驱动部分在接合位置和分离位置之间移动的致动器。 在将轮毂和联接驱动部分移动到接合位置时，致动器由弹簧压力驱动。 在将轮毂和联接驱动部分移动到脱离位置时，致动器由提供给致动器的液压被驱动，足以克服弹簧压力。

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